The gauge on the left is for compartment pressure and reads 0-600 foot,
0-266.29 lbs. It just has small holes around the circumference, and no nipple for a gauge line.
The gauge on the right for depth from surface and reads 0-600 foot with a standard NPT nipple for the gauge line at the bottom.
These have a 7-3/8" outside diameter bezels, with approx. 5" engraved dials. The metal of the dial is 6". The clear inside of the bezel (visible window) is 5.7" in diameter. The gauge body base is about 7-5/8" in diameter, the mounting holes are approx. 6" center to center, or approx. 3.5" radius centers. These are called 6" gauges.
US Gauge Part numbers 6AD-9489 compartment, 6AD-9916 depth. Ashcroft gauges are great as well.
We need two 0-600 depth gauges, one for the Conning Tower and one for the After Torpedo Toom. We would also like to find a third depth gauge for use in the USS Roncador Conning Tower.
We need one compartment pressure gauge for the Roncador Conning Tower.
If we found the correct gauge bodies and tubes we can replicate the needed dials (faces).
We also need the sea and vent valves for both After Torpedo Room and Conning Tower.